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UBI: fix autoresize handling in R/O mode 

commit abb3e01103eb4e2ea5c15e6fedbc74e08bd4cc2b upstream.

Currently UBI fails in autoresize when it is in R/O mode (e.g., because the
underlying MTD device is R/O). This patch fixes the issue - we just skip
autoresize and print a warning.

Reported-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Artem Bityutskiy 2012-08-18 14:11:42 +02:00 committed by Greg Kroah-Hartman
parent 1168fb4bf4
commit 56a631f3bf
1 changed files with 5 additions and 0 deletions
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5
drivers/mtd/ubi/build.c
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@ -816,6 +816,11 @@ static int autoresize(struct ubi_device *ubi, int vol_id)
struct ubi_volume *vol = ubi->volumes[vol_id]; struct ubi_volume *vol = ubi->volumes[vol_id];
int err, old_reserved_pebs = vol->reserved_pebs; int err, old_reserved_pebs = vol->reserved_pebs;
if (ubi->ro_mode) {
ubi_warn("skip auto-resize because of R/O mode");
return 0;
}
/* /*
* Clear the auto-resize flag in the volume in-memory copy of the * Clear the auto-resize flag in the volume in-memory copy of the
* volume table, and 'ubi_resize_volume()' will propagate this change * volume table, and 'ubi_resize_volume()' will propagate this change